US1077573A

US1077573A - Saw-swage.

Info

Publication number: US1077573A
Application number: US68720712A
Authority: US
Inventors: Edward H Wolfe
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-03-29
Filing date: 1912-03-29
Publication date: 1913-11-04
Anticipated expiration: 1930-11-04

Description

E. H. WOLFE.

SAW SWAGE.

APPLICATION FILED 121113.29, 1912.

Patented Nov. 4, 1913.

314 umdoz EDWARD H. WOLFE, OF CAMAS, VJASHINGTON.

SAW-SWAGE.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed March 29, 1912. Serial No. 687,207.

To all whom it may concern:

Be it known that I, EDWARD H. WOLFE, a citizen of the United States, residing at Gamas, in the county of Clarke and State of \Vashington, have invented certain new and useful Improvements in Saw-Swages, of which the following is a specification.

This invention relates to saw swages, and has as its object to provide a swage which may be readily and quickly applied to and adjusted upon the saw-blade, the teeth of which are to be swaged, and by the use of which the teeth may be set, swaged and jointed.

One aim of the invention is to provide a device for the purpose stated which will avoid the use of a hammer and a consequent breaking of the rakers and cutting teeth and in which repeated examination of the teeth during the swaging, jointing and setting thereof, and the consequent strain on the eyes of the person performing these operations will be obviated.

The invention also aims to provide a device of the class mentioned in which the jointing, swaging and setting of the sawteeth will be accurately accomplished without particular attention on the part of the user.

For a full understanding of the invention reference is to be had to the following description and accompanying drawing, in which 2- Figure l is a side elevation with parts broken away illustrating the device embodying the present invention. Fig. 2 is a vertical transverse sectional view therethrough on the line 22 of Fig. 1. Fig. 3 is a perspective view of a gage plate constituting a part of the device. Fig. 4 is a group perspective view showing those elements of the device which act upon the saw teeth to set the same.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

In the drawing, the numeral 1 indicates the body of the device which is preferably cast and includes spaced cheek-plates 2. The cheek-plates 2 are integrally connected at their upper ends as clearly shown in Fig. 2 of the drawing, and are arranged to straddle the blade of the saw,-theteeth of which are to be swaged, set and jointed. The body 1 is held clamped upon the saw blade by means of a set-screw 8 threaded through each of the cheek-plates 2 near the lower end thereof and each provided upon its inner end with a swiveled washer t which is designed to bear against the side of the saw-blade and within which the said inner end of the setscrew may turn, and these set-screws are provided at their outer ends each with a hand wheel 5 by means of which it may be adjusted. It will be understood that by providing the screws with the swiveled washers 4 the end of the set-screw is prevented from creeping along the saw-blade when the setscrews are tightened to clamp the device upon the blade.

By referring to Fig. 2 of the drawing it will be observed that the cheek-plates 2 are spaced apart a distance considerably greater than the thickness of the saw-blade to be treated, so that notonly is the device adapted to be used upon saws of various sizes but also a jointing file may be arranged and held between the cheek-plates in a manner to be presently described.

A body 6 is removably secured by means of bolts 7 upon the upper side of the body 1 and this body 6 is preferably substantially of the same width as the body 1 and hollow, as shown in Fig. 2, the side walls being indicated by the numeral 8 and the top wall by the numeral 9. A shaft 10 is journaled for rotation in the side walls 8 of the body 6 and this shaft carries a pinion 11 which is thus mounted for rotation between the said side walls.

To the outer end of the shaft there is removably fixed an operating lever 12 by means of which the shaft may be rotated to in turn rotate the pinion 11. The numeral 13 indicates the swaging plunger which has its lower end oppositely beveled as at 14 and this plunger is formed upon opposite sides with ribs 15 extending vertically and running in guide grooves 16 formed in the opposite faces of the side walls 8 of the said body 6, the plunger being in this manner guided for a vertical reciprocatory movement within the body 6. The upper end of the plunger projects above the upper end of the said body and fixed upon the said end of the plunger is a head 17. Adjustable abutment screws 18 are threaded through the head 17 and are located one at each side of the plunger 13 and when the plunger has been lowered to the proper degree the lower ends of these screws projecting below the under side of the head 17, will be brought into engagement with the upper side of the body 6 and further downward movement of the said plunger prevented. At this point it will be readily understood that upon swinging the lever 12 in one direction or the other, the pinion 11 will be rotated and as the pinion is in mesh with rack teeth 19 formed upon one side of the plunger 13, the plunger will be raised or lowered, depending upon the direction in which the lever is swung. It will further be observed that the beveled faces 14 of the lower end of the plunger 13 are presented toward the ends of the body 1 and the upper side of this body is recessed as at 20 to form a shoulder 21 and is further recessed as at 22, the first mentioned recess being formed in the connecting portion between the cheek-plates 2 and the recess 22 being formed in the said cheelcplates themselves. A plate 23 which is preferably of case hardened steel and is clearly shown in Fig. 3 of the drawing, has attaching-end portions indicated specifically by the numeral 24 and formed each with openings 25. This plate is disposed within the recess 20 with the said attaching-end portions resting upon the shoulders 21 and screws 26 are inserted through the openings 25 and are removably threaded into the cheek-plates of the body 1. The intermediate portion of the plate shown in Fig. 3 is depressed or offset downwardly as at 27 and the ends of this depressed intermediate portion of the plate abut against the vertical walls of the recess 22, as clearly shown in Fig. 1 of the drawing, the said portion of the plate lying within the upper portion of these recesses. This portion 27 of the plate shown in Fig. 3 is slotted as at 28 and the plate is so positioned that when the plunger 13 is forced downwardly by the rotation of the pinion 11, the lower end of the said plunger will move through the slot 28.

As before stated, the device embodying the present invention is constructed to swage, set and joint the teeth of a saw and in order that this latter operation may be performed there is provided a plunger 29 having its lower end beveled upon one side at 30, this plunger being otherwise identical in structural details with the plunger 13 and being designed to be substituted for this plunger 13 when the latter is removed. It will beobvious that the beveled face of the plunger 29 is presented laterally, or in other words in the direction of one of the cheek-plates 2 of the body 1 and when this plunger is to be used for the purpose of setting the teeth of the saw, a block 31 is fitted in this recess and secured by means of set-bolts. This block 31 has a beveled body portion 32 and when the plunger 29 is forced downwardly its beveled face 30 is designed to cooperate with the beveled face 32 of the block 31 to set the teeth to the proper angle. By providing the cooperating' members 24 as described for the purpose of setting the teeth, the teeth are not that the teeth may be jointed by clamping an ordinary file between the cheek-plates 2 and then running the device back and forth over the saw-blade so that the edge of the file will even off the saw teeth. After this operation the file is removed and the device is clamped firmly to the saw-blade with one or two'of the ralrers projecting between the recess 22 and the points of the teeth thereof projecting through the slot 28. The plunger 13 at such time will be elevated to posit-ion with its beveled lower end spaced considerably above the said plate 23 and with the device thus arranged a file maybe moved back and forth across the upper side of the depressed portion 27 of the said plate 23, whereby to file the ralrers to the proper length, or in other words, with the points of the raker teeth located at the prop-er distance inwardly of the line touched by the points of the cutting teeth. After the rakers have been properly filed down, the plunger 13 is forced downwardly so that its beveled lower end will enter the gullet of the rakers and properly upset the points. When it is desired to set the cutting teeth, the plunger 13 is removed and the plunger 29 15 inserted into place and after the device has been so clamped upon the sawas to bring the tooth to be set, into proper position for engagement by the lower end of the plunger, the said plunger is forced downwardly so that its beveled face 30 will engage with the point of the tooth and bend the same against the beveled face 33 of the block 31.

From the foregoing it will be seen that there is provided a device of the class described which will be readily and quickly manipulated to swage, set and joint the teeth of any ordinary cross-cut saw, and it will further be apparent that the operator of the device is not required to accurately adjust the deviceupon the saw nor is it necessary for him to repeatedly examine the teeth to see that the joints of the cutting teeth are set at the proper angle or the points of the rakers are properly swaged.

Having thus described the invention what is claimed as new 1s:

1. In a device of the class described, a body plates being formed with a saw-blade receiving recess, a plunger mounted for movement between said cheek plates and having a beveled saw tooth engaging end, means for moving the plunger into and out of cooperative engagement with a saw-blade engaging in the recess, and a file plate secured within the recess and having an opening to receive the operating end of the plunger, said plate being formed with file-receiving depressions, the ends of the plate being oil'- set and secured to said cheek plates.

2. In a device of the class described, a body having a saw-blade receiving recess, a plunger mounted for movement upon the body and having a beveled saw tooth engaging end, means for moving the plunger into and out of cooperative relation to saw blade engaging in the recess, and means for limiting the movement of the plunger in a direction to cooperate With the teeth of the sawblade, said means comprising a head fixed at the other end of the plunger, and an abutment screw adjustably threaded in the head and arranged to engage against the adjacent side of the body.

In testimony whereof I afliX my signature in presence of two Witnesses.

EDWARD H. WVOLFE. [n s.] Witnesses:

HUGH MAoh IAsTnR, L. GITrINes.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. 0.